Results 21 to 30 of about 1,114,847 (341)
Two-color monochromatic x-ray imaging with a single short-pulse laser
Review of Scientific Instruments, 2017 Hiroshi Sawada +6 more
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Sexual dichromatism and assortative mating by multiple plumage color traits in wild Chestnut Thrush
Avian Research, 2022 Sex differences in plumage color are common in bird species. Some bird species are regarded as sexually monochromatic in human visual systems, and in recent years, some species are found to be of cryptic (to human) sexual dichromatism by ...
Yingqiang Lou +5 more
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Coloring Graphs Using Two Colors While Avoiding Monochromatic Cycles [PDF]
INFORMS Journal on Computing, 2012 We consider the problem of deciding whether a given directed graph can be vertex partitioned into two acyclic subgraphs. Applications of this problem include testing rationality of collective consumption behavior, a subject in microeconomics. We prove that the problem is NP-complete even for oriented graphs and argue that the existence of a constant ...
Talla Nobibon, Fabrice +3 more
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Monochromatic Boxes in Colored Grids [PDF]
SIAM Journal on Discrete Mathematics, 2011 A $d$-dimensional grid is a set of the form $R = [a_1] \times ... \times [a_d]$. A $d$-dimensional box is a set of the form $\{b_1,c_1\} \times ... \times \{b_d,c_d\}$. When a grid is $c$-colored, must it admit a monochromatic box? If so, we say that $R$ is $c$-guaranteed.
Cooper, Joshua +2 more
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Rainbow Monochromatic k-Edge-Connection Colorings of Graphs [PDF]
Graphs and Combinatorics, 2021 22 ...
Li, Ping, Li, Xueliang
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About quantifying small color differences in digital images [PDF]
Компьютерная оптика, 2020 We discuss aspects of the use and possibilities provided by three-color colorimeters or digital cameras in problems of detecting small color differences by computer vision methods.
I.G. Palchikova +5 more
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Evaluation of the roughness, color match, and color stability of two monochromatic composite resins: a randomized controlled laboratory study. [PDF]
BMC Oral HealthSantana IC +7 more
europepmc +3 more sources
Polychromatic speckle reduction in laser pico-projectors using stationary dual Hadamard diffusers [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 Speckle from coherent light sources continues to be a limiting factor in the design and manufacturing of laser projectors. Utilizing diffractive diffusers has been an effective method for reducing monochromatic speckle contrast.
Thomas W., Middlebrook C.
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Photonics, 2021 A wavelength multiplexing procedure for color transmission volume holograms of diffusing objects recorded in Bayfol® HX200 photopolymer is proposed. For the recording, three lasers of 442 nm, 532 nm and 633 nm, and a Spectralon® diffusing object were ...
Marina Sevilla +4 more
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Monochromatic subgraphs in randomly colored graphons [PDF]
European Journal of Combinatorics, 2019 Let $T(H, G_n)$ be the number of monochromatic copies of a fixed connected graph $H$ in a uniformly random coloring of the vertices of the graph $G_n$. In this paper we give a complete characterization of the limiting distribution of $T(H, G_n)$, when $\{G_n\}_{n \geq 1}$ is a converging sequence of dense graphs.
Bhattacharya, Bhaswar B. +1 more
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